Tonic Sol-Fa Christmas
The a cappella group, which specializes in pop arrangements, celebrates the holidays at Orchestra Hall in Minneapolis, Minnesota. The spirited program highlights the foursome's trademark humor and skilled musicianship as they perform a mix of traditional, secular and original holiday songs. The music is intertwined with interviews with group members.G

NOVA"Riddles of the Sphinx"
A team of archeologists, including the director of the Ancient Egypt Resource Associates, peel back 45 centuries of mysteries to reveal the techniques and labor invested in the giant sculpture. The team unearths new discoveries about the people who built this half-human, half-lion image that is nearly the length of a football field and as tall as the White House. And, why they created such a haunting and stupendous image.G

6:00 pm

NOVA"Building Pharaoh's Ship"
NOVA follows a team of archaeologists and boat builders as they reconstruct the mighty vessel shown on a mysterious carving on the wall of a 3,500-year-old temple built for the female pharaoh Hatshepsut. According to the wall carving, the vessel embarks on a royal expedition to a mysterious land called Punt. Today's adventurers launch their boat into the Red Sea on a modern voyage of discovery.G

7:00 pm

Next Frontier: Engineering the Golden Age Of Green
The Next Frontier: Engineering the Golden Age of Green cuts through the debate about global warming and climate change. Instead, it focuses on the renewable, clean energy technologies that can improve our future and create significant economic opportunities. This entertaining one-hour documentary takes the viewer around the world in search of technologies and policies that will address the serious problem of excessive carbon dioxide emissions and our dangerous dependence on fossil fuels. D

8:00 pm

Scientific American Frontiers"Pet Tech"
This episode explores the convergence of high technology and the family pet. Alda meets an African Gray parrot with the cognitive abilities of a four-year-old child, and tries out high-tech games for bored parrots and lonely dogs. D

9:00 pm

NOVA"Riddles of the Sphinx"
A team of archeologists, including the director of the Ancient Egypt Resource Associates, peel back 45 centuries of mysteries to reveal the techniques and labor invested in the giant sculpture. The team unearths new discoveries about the people who built this half-human, half-lion image that is nearly the length of a football field and as tall as the White House. And, why they created such a haunting and stupendous image.G

10:00 pm

NOVA"Building Pharaoh's Ship"
NOVA follows a team of archaeologists and boat builders as they reconstruct the mighty vessel shown on a mysterious carving on the wall of a 3,500-year-old temple built for the female pharaoh Hatshepsut. According to the wall carving, the vessel embarks on a royal expedition to a mysterious land called Punt. Today's adventurers launch their boat into the Red Sea on a modern voyage of discovery.G

11:00 pm

Next Frontier: Engineering the Golden Age Of Green
The Next Frontier: Engineering the Golden Age of Green cuts through the debate about global warming and climate change. Instead, it focuses on the renewable, clean energy technologies that can improve our future and create significant economic opportunities. This entertaining one-hour documentary takes the viewer around the world in search of technologies and policies that will address the serious problem of excessive carbon dioxide emissions and our dangerous dependence on fossil fuels. D